"A prequel to the 2013 Kyoto Animation series Free! which is an adaptation of light novel High☆Speed!"
Koki Uchiyama
as Ikuya Kirishima (voice)
Nobunaga Shimazaki
as Haruka Nanase (voice)
Tatsuhisa Suzuki
as Makoto Tachibana (voice)
Satomi Sato
as Nagisa Hazuki (voice)
Kenji Nojima
as Natsuya Kirishima (voice)
Mamoru Miyano
as Rin Matsuoka (voice)
Yoko Hikasa
as Rei Ryuugazaki (voice)
Chihiro Suzuki
as Kisumi Shigino (voice)
Aoi Yuuki
as Sousuke Yamazaki (voice)
Satoshi Hino
as Nao Serizawa (voice)
Toshiyuki Toyonaga
as Asahi Shiina (voice)
Tatsuya Kato
Original Music Composer
Maiko Nishioka
Screenplay
Shunji Inoue
Executive Producer
Fumie Okano
Key Animation
Eisaku Kawanami
Second Unit Director
Yuko Myouken
Animation Director
Tomoko Yoshimura
Miho Kitaji
Yuka Murakami
Yuji Shibata
3D Director
Shigeru Saito
Producer
Futoshi Nishiya
Shouko Ikeda
Hiroshi Karata
Kunihiro Hane
Mariko Takahashi
Keita Nagahara
Mayumi Noguchi
Background Designer
Etsuko Abe
Masakazu Koyama
Yoshiji Kigami
Supervising Animation Director
Yuki Tsunoda
Minoru Ota
Maiko Hado
Shingo Kasai
Daiki Kuribayashi
Nobuaki Maruki
Tatsunari Maruko
Akihiro Ura
Assistant Director of Photography
Character Designer
Yoko Hatta
Yasuhiro Takemoto
Shinichiro Hatta
Kohei Okamura
Miku Kadowaki
Nami Iwasaki
Ryouhei Muta
Saeko Fujita
So Senoo
Seiichi Akitake
Prop Designer
Chiyoko Ueno
Kengo Shigemura
Editor
Music Producer
Taichi Ishidate
Kota Sato
Masayuki Nishide
Haruka Fujita
Shinpei Sawa
Sana Suzuki
Seiya Kumano
Naoki Hosokawa
Kouji Maruyama
Kim Ji-hee
Tatsuya Satou
Chinatsu Morimoto
Kanae Okura
Naoya Nakayama
Sayaka Watanabe
Tomoki Hiraishi
Ryuta Nakagami
3D Animator
Lee Mi-jin
Hiroki Ueda
Compositing Artist
Taichi Ogawa
Takuya Yamamura
Akiko Takase
Chiharu Kuroda
Kyohei Ando
Aki Yamatogi
Yukiko Takeuchi
Sin So-yeon
Kohei Funamoto
Aoi Okuno
Tadashi Kashiwagi
Yurika Ono
Toru Hasegawa
Ayami Hidaka
Shouko Ochiai
Sagako Itakura
Eiko Morikawa
Sound Effects
Taira Yamaguchi
Hidehiro Asama
Saeko Oofuji
Ayano Kato
Park Jung-ah
Yoko Kogawa
Susumu Okinaka
Ayaka Nagahama
Ami Kuriki
Shinsuke Kinoshita
Tomoe Chiga
Lee Cheon-bok
Tomofumi Sugitani
Norihiro Tomiita
Yoshiko Tanaka
Momoka Hase
Sayaka Ichiyama
Tetsuo Umetsu
Teru Matsumoto
Shinichi Nakamura
Noriyuki Kitanohara
Yoshinori Urata
Ryosuke Shirakawa
Shiho Morisaki
Tatsuro Onishi
Rin Yamamoto
Kazumi Ikeda
Miyuki Hiratoko
Ikuko Tamine
Minami Kasuga
Saki Arakawa
Rie Sezaki
Hiroyuki Takahashi
Kayo Hikiyama
Sae Sawada
Ryo Miyaki
Mutsuo Shinohara
Ryoko Yamada
Nozomi Oishi
Marie Kitai
Joji Unoguchi
Art Direction
Sachie Tsuda
Special Effects
Storyboard Artist
Satoshi Yano
Sound Recordist
Masahiro Yokotani
Series Composition
Koji Oji
Original Story
Kazuya Takao
Director of Photography
Yuka Yoneda
Color Designer
Yota Tsuruoka
Sound Director
Director
Keisuke Yokota
Production Manager
Areum Han
Yotaro Sato
Saki Yasuda
Ryoji Ogawa
Takahisa Fujita
Kanna Nakata